Vital preset for archiving a project?

If i send reaper project backup, wil it contain vital preset in it
or should i save it separately?

like for synth1 i dont have to worry about saving the preset settings
not sure about vital.does it save the preset in project folder?

and do i need to send the preset to someone if i want to share that project folder?

Yes it will save an unsaved preset in your project folder, but this is not a guarantee, I strongly recommend saving presets to be safe

Yes to work collaboratively the other user will require the presets saved to the appropriate folder to my knowledge
When I last tried, my unsaved presets were simply init
However, I usually print to audio when sending project files for collaborative stuff